Wearing apparel



Patented July 25, 1944 UNITED STATES PATENT mm Camille Dreyfus, New Ybrk, N. Y.

No Drawing. Application February 24, 1941, Serial No. 380,393

4 Claims. (01. 2-97) This invention relates to wearing apparel and relates more particularly to men's or women's coats or jackets.

An object of my invention is to provide wearing apparel having a lining of ,films or foils of an organic derivative. of cellulose composition whereby the same is rendered warmer and more resistant to wind. Other objects of my invention will appear from the following detailed description.

In accordance with my invention, wearing apparel is provided with a-lining comprising a relatively thin film or foil of a composition comprising an organic derivative of cellulose. In this manner there is produced a garment having greatly enhanced warmth imparting properties and resistance to wind with little added expense and only slightly increased in weight and substantially no impairment of flexibility.

Any suitable wearing apparel may be made in accordance with this invention, but it is particularly applicable to jackets or top or outer coats for either military use or for mens or women's civilian use .where warmth and wind resistance is desired.

The film or foil of organic derivatives of cellulose may be used in the garments instead of an ordinary lining, but is preferably used as an interlining between the outer or exposed fabric and the ordinary lining which may be made of fabric of cellulose acetate or other organic derivative of cellulose yarn, or yarn of regenerated cellulose, cotton, mohair, silk, etc. I

The organic derivative of cellulose film or foil may be attached to the fabrics of the garment only at the seam or it may be attached by sewing to the lining at any desired points. Furthermore, since the organic derivative of cellu-- lose film or foil is thermoplastic, it may be attached at selected areas to either the outer fabric or the lining, or both, by laminating by the application of heat and pressure 'of suilicient degree to cause adhesion. However, whatever the mode of attachment, it is preferable that the film or foil be loosely attached to the fabrics, that is, unattached over a major portion of its area so as to form air spaces between the film or foil and the fabrics, whereby greater heat insulation is obtained.

While I prefer to use cellulose acetate 'as the base for the plastic material of which the films or foils are made, and the invention will be specifically described in connection therewith, other organic derivatives of cellulose may be used, such as cellulose aceto-propionate, celluloseaceto-butyrate, cellulose aceto-stearate, cellulose propionate, butyrate, stearate and propiostearate or other organic esters of cellulose, ethyl cellulose and benzyl cellulose or other cellulose ,ethers, and ether-esters of cellulose such as ethyl cellulose acetate and hydroxy-ethyl cellulose acetate.

The organic derivative ofcellulose composition of which the films or foils are made contains a suitable plasticizer. Examples of plasticizers for cellulose acetate and like materials are triacetin, triphenyl acetin, tripropionin, dimethyl phthalate, diethyl phthalate, dimethoxy ethyl phthalate, dibutyl tartrate and the sulphonamides, such as p-toluene sulphonamide. These plasticizers may be used in amounts of 30 to o of the weight of the cellulose acetate. Preferably a large amount of plasticizer, say from 50 to 100% of the weight of the organic derivative .say from 0.0005 to 0.003 inch, although greater thicknesses may be used if too much flexibility is not required. The films or foils may be made by casting or pouring a solution in a volatile solvent of the organic derivative of cellulose and plasticizer, with or without pigments or other eflect material, onto film wheels, bands or other surfaces and then removing the solvent by evaporation or by a coagulating bath.

If ventilation of the garment is desired, the film or foil may be perforated in local areas, but in order to maintain wind-resistance these perforations should preferably occur over only a small proportion of the area of. the same.

It is to be understood that the foregoing detailed description is merely given by way of illustration and that many variations may be made therein without departing from the spirit of my invention.

Having described my invention, what I desire to secure by Letters Patent is: V

l. Garments of laminar construction comprising an outer fabric, a lining of textile fabric and therebetween as an inner lining a loosely attached thin film or foil comprising an organic derivative of cellulose united at local areas only by the application of heat and pressure to at least one of the other components.

2. Garments of laminar construction comprising an outer fabric, a lining of textile fabric and I therebetween as an inner lining a loosely attached thin film or foil comprising cellulose acetate united at local areas only by the application of heat and pressure to at least one of the other components.

3. Garments of laminar construction comprising an outer fabric, a lining of textile fabric and therebetween as an inner lining a loosely attached thin film or foil comprising an organic derivative :of cellulose of a thickness of from 10 0.0005 to 0.003 inch, said film or foil being united at local areas only to at least one of the other components and having incorporated therein a plasticizer for the organic derivative of cellulose said film or foil being'united at local areas only to at least one of the other components and having incorporated therein a plasticizer for the cellulose acetate in an amount of at least 50% based on the weight of the cellulose acetate.

camiu: DREYFUS. 

